using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; namespace charger_gui { class Logger { private string fileName; public Logger(string fileName) { this.fileName = fileName; } public void Log(string s) { var toLog = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " " + s + "\n"; File.AppendAllText(fileName, toLog); } } }